This symposium will focus on specific aspects of diverse agricultural production systems designed to provide grain and cellulosic feedstocks for future biofuels needs. Topics will include identifying appropriate production systems, including intensive corn / soybean production (biofuels and feed) as well as less intensive systems that include perennial crops. The ability of these systems to sequester soil carbon will be discussed. The roles biotechnology and geospatial technologies may play in addressing biofuels needs will be presented. Speakers will consider how these varying aspects fit into the overall agricultural production system.